A method and apparatus for beam detection in a wireless communication system. In one embodiment, the method includes the UE initiating a RA procedure. The method also includes the UE transmitting multiple RA preambles to a base station of the cell at different occasions for the base station to determine a beam set of the UE. The method further includes the UE starts monitoring a PDCCH for RA response reception from the base station after finishing transmissions of the multiple RA preambles.
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2. The method of claim 1, wherein the RA response is transmitted to the UE via a Physical Downlink Control Channel (PDCCH) in a RA response window.
3. The method of claim 2, wherein the RA response window starts at a subframe that contains an end of a transmission of a last RA preamble of the multiple RA preambles plus a number of subframes and has a length configured to the UE.
4. The method of claim 3, wherein the RA response window starts at a subframe that contains the end of the transmission of the last RA preamble of the multiple RA preambles plus three (3) subframes.
5. The method of claim 2, wherein the RA response window starts at a subframe that has a length configured to the UE.
6. The method of claim 1, wherein each of the multiple timings refers to a symbol.
This invention relates to a method for processing timing signals in a communication system, particularly for synchronizing data transmission and reception. The problem addressed is the need for precise timing alignment in communication systems where multiple timing signals must be accurately mapped to specific symbols to ensure reliable data transfer. The method involves generating multiple timing signals, each corresponding to a distinct symbol in a communication protocol. These timing signals are used to synchronize the transmission and reception of data, ensuring that symbols are correctly identified and processed. The timing signals are derived from a reference clock or a synchronization mechanism, and their alignment with symbols is critical for maintaining data integrity. The method further includes adjusting the timing signals to compensate for delays or variations in the communication channel, ensuring that each timing signal accurately reflects the intended symbol timing. This adjustment may involve phase shifting, frequency correction, or other synchronization techniques to maintain alignment. By mapping each timing signal to a specific symbol, the method enables precise synchronization between transmitting and receiving devices, reducing errors and improving communication efficiency. The invention is particularly useful in high-speed or high-precision communication systems where timing accuracy is essential.
7. The method of claim 1, wherein each of the multiple timings refers to a time slot.
A system and method for managing time-based operations in a communication network involves assigning multiple timings to a communication device, where each timing corresponds to a specific time slot. The communication device monitors these time slots to determine when to perform scheduled operations, such as data transmission or reception. The method includes generating a timing signal for each time slot, synchronizing the communication device with a reference timing source, and dynamically adjusting the timings based on network conditions or device requirements. The system ensures efficient resource allocation by aligning operations with predefined time slots, reducing collisions and improving overall network performance. The communication device may also prioritize certain time slots over others to handle critical or high-priority tasks. This approach enhances reliability and efficiency in time-sensitive communication systems, such as wireless networks or industrial automation systems, by ensuring precise synchronization and optimal use of available time slots.
8. The method of claim 1, wherein the UE is within normal coverage of the base station such that a received signal quality of the UE from the base station is above a threshold.
9. The method of claim 1, wherein each of the multiple timings refers to a subframe.
This invention relates to wireless communication systems, specifically methods for managing timing in subframe-based transmissions. The problem addressed is the need for precise timing synchronization in wireless networks to ensure efficient data transmission and reception. The invention provides a method where multiple timings are used, with each timing corresponding to a subframe. Subframes are fixed-duration time slots used in wireless communication protocols to organize data transmission. By associating each timing with a subframe, the method ensures that transmissions are aligned with these predefined intervals, reducing interference and improving synchronization between devices. The method may involve adjusting or selecting these timings based on network conditions, such as signal quality or latency requirements, to optimize performance. This approach is particularly useful in systems like LTE or 5G, where subframe-based scheduling is critical for maintaining reliable communication. The invention may also include mechanisms to dynamically update or prioritize subframe timings to adapt to changing network demands. Overall, the method enhances timing accuracy and coordination in wireless networks, leading to more efficient and reliable data transmission.
10. The method of claim 1, wherein the base station scans the multiple timings with all beams of the cell in association with the UE.
11. The method of claim 1, wherein the base station scans the multiple timings with all beams of the cell in association with receiving one or more RA preambles from the UE.
13. The UE of claim 12, wherein the RA response is transmitted to the UE via a Physical Downlink Control Channel (PDCCH) in a RA response window.
14. The UE of claim 13, wherein the RA response window starts at a subframe that contains an end of a transmission of a last RA preamble of the multiple RA preambles plus a number of subframes and has a length configured to the UE.
15. The UE of claim 14, wherein the RA response window starts at a subframe that contains the end of the transmission of the last RA preamble of the multiple RA preambles plus three (3) subframes.
This invention relates to wireless communication systems, specifically to the timing of random access (RA) response windows in user equipment (UE) devices. The problem addressed is optimizing the timing of RA response windows to improve efficiency and reduce latency in RA procedures, particularly when multiple RA preambles are transmitted. The UE transmits multiple RA preambles to a base station as part of an RA procedure. The RA response window is a time interval during which the UE monitors for an RA response from the base station. The invention specifies that the RA response window starts at a subframe that contains the end of the transmission of the last RA preamble plus three subframes. This ensures that the UE has sufficient time to receive the RA response after transmitting all preambles, accounting for processing delays and propagation time. The timing adjustment helps synchronize the UE and base station, reducing the risk of missed responses and improving overall RA procedure reliability. The invention may be part of a broader system for managing RA procedures in wireless networks, including mechanisms for preamble transmission, response monitoring, and backoff procedures. The solution is particularly relevant in scenarios with high contention or latency-sensitive applications.
16. The UE of claim 12, wherein each of the multiple timings refers to a symbol.
17. The UE of claim 12, wherein each of the multiple timings refers to a time slot.
This invention relates to wireless communication systems, specifically to user equipment (UE) managing multiple timing configurations for data transmission. The problem addressed is the need for efficient synchronization and resource allocation in wireless networks where UEs must handle multiple timing references, such as different time slots, to optimize data transmission and reception. The UE includes a processor configured to receive multiple timings from a network node, where each timing corresponds to a specific time slot. The UE processes these timings to determine the appropriate transmission or reception windows for uplink and downlink communications. The processor also adjusts the timing configurations dynamically based on network conditions, such as signal quality or traffic load, to ensure reliable and efficient data transfer. Additionally, the UE may prioritize certain timings over others to handle critical or time-sensitive data, ensuring low-latency communication. The invention further includes mechanisms for synchronizing with multiple network nodes, allowing the UE to maintain connections with different base stations or access points while managing the associated timing references. This is particularly useful in scenarios like handover, where the UE transitions between cells, or in multi-connectivity setups where the UE communicates with multiple nodes simultaneously. The UE may also use the timings to coordinate with other UEs in the network, reducing interference and improving overall system performance. The solution enhances flexibility and efficiency in wireless communication systems by dynamically adapting to varying timing requirements.
18. The UE of claim 12, wherein each of the multiple timings refers to a subframe.
19. The UE of claim 12, wherein the base station scans the multiple timings with all beams of the cell in association with the UE.
This invention relates to wireless communication systems, specifically improving synchronization between a user equipment (UE) and a base station. The problem addressed is the inefficiency in initial access procedures where the UE and base station must align timing and beam directions for reliable communication. Traditional methods often require multiple rounds of signaling, increasing latency and power consumption. The invention describes a UE configured to receive synchronization signals from a base station, where the base station scans multiple timing offsets using all available beams of the cell. This allows the base station to cover all possible timing hypotheses and beam directions in a single scan, reducing the time and resources needed for synchronization. The UE then selects the optimal timing and beam based on the received signals, enabling faster and more efficient initial access. The system may also include mechanisms for the UE to report the selected timing and beam back to the base station, further optimizing subsequent communications. This approach improves synchronization efficiency, reduces latency, and enhances overall system performance in wireless networks.
20. The UE of claim 12, wherein the base station scans the multiple timings with all beams of the cell in association with receiving one or more RA preambles from the UE.
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January 13, 2021
October 25, 2022
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